A default installation of Windows 2003 Server, including Small
Business Server, will have the Network Load Balancing Service
enabled. This will cause the Service Control Manager to display
an Application popup before login: “At least one service or
driver failed during system startup. Use Event Viewer to examine
the event log for details”. In the Event Viewer a Service Control
Manager Event ID: 7000 will be displayed with the following details:
|Event Source:||Service Control Manager|
The Network Load Balancing service failed to start due to the following error:
The service cannot be started, either because it is disabled or
because it has no enabled devices associated with it.
A supposed fix for this is to view the properties of the network
connections on the server and remove the check for the Network
Load Balancing Service in the list of Services. I have yet to
see this fix work.
The fix that I have found and use on my productions servers
requires a quick registry change. Please note that changing
the Windows registry can have disastrous results if you make
the wrong changes. If you are not sure about the changes you
are making, contact qualified professionals like New Age
Digital to assist you!
- Start Registry Editor. Click Start, Run, type
“regedit” in the Open box, and click OK.
- Drill down to the
- Right click the WLBS registry key and click Export.
Save the file with a descriptive filename to a secure
location. This will backup the registry key and allow
you to restore the key if you make a mistake or decide
to use Network Load Balancing in the future.
- In the right window pane, right click registry
entry named Group, and then click Modify.
- Clear the Value data. Simply delete the PNP_TDI
and leave the field blank. Click on OK, and close
the Registry Editor.
- On reboot the Error message will no longer be displayed.
If you wish to enable Network Load Balancing, browse to the
backup of the registry key and double click it. Windows will
ask you to confirm importing the data into the registry.
Approve the import and reboot. Note that any registry key
restore will overwrite existing registry values. Any changes
made to the other values under the WLBS key will be
overwritten as well.